萘酚绿B

Description

Naphthol Green B · CAS 19381-50-1 · C30H15FeN3O15S3.3Na. UNII W60I5H3VMQ. Color Additive Status: 81.10; Color Additive Status: 81.30.

Identification

CAS Registry Number	19381-50-1
PubChem CID	6915910
Molecular formula	C30H15FeN3O15S3.3Na
IUPAC name	trisodium;iron(3+);tris(5-nitroso-6-oxidonaphthalene-2-sulfonate)
UNII (FDA)	W60I5H3VMQ

Computed Descriptors

Molecular Weight	878.5
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	18
Rotatable Bond Count	0
Exact Mass	877.870774
Monoisotopic Mass	877.870774
Topological Polar Surface Area	354
Heavy Atom Count	55
Formal Charge	0
Complexity	377

Physical & Chemical Properties

Color Additive Status	81.10
Color Additive Status	81.30

Physical description & handling notes

• Ext. D&C Green No. 1
• None
• formerly External Drugs, External Cosmetics

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Hair dyeing; Cosmetic colorant
GHS notification summary	96.9% (156 / 161)

GHS Hazard Classification

GHS notification summary	96.9% (156 / 161)

Documented Uses

• EPA Safer Chemical Functional Use Classes -> Colorants
• Safer Chemical Classes -> Green half-circle - The chemical is expected to be of low concern
• Cosmetics -> Hair dyeing; Cosmetic colorant
• Information on 13 consumer products that contain CI 10020 in the following categories is provided:
• Ferrate(3-), tris[5,6-dihydro-5-(hydroxyimino-.kappa.N)-6-(oxo-.kappa.O)-2-naphthalenesulfonato(2-)]-, sodium (1:3): ACTIVE

Synonyms

Acid green 1; C.I. Acid Green 1; Ext D&C Green 1; C.I. Acid Green 1 (VAN); EINECS 243-010-2; GREEN NO. 401; DTXSID4044406; VERT B W 7002; NSC-9830; Iron, tris(5,6-dihydro-5,6-dioxo-2-naphthalenesulfonic acid-5-oximato)-, trisodium salt; Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6)-, trisodium; Ferrate(3-), tris[5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6]-, trisodium; Trisodium tris(5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6)ferrate(3-); Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-); RefChem:572084; ACID GREEN 1 [INCI]

Frequently Asked Questions

What are the CAS number and molecular formula of Naphthol Green B?

CAS 19381-50-1; molecular formula C30H15FeN3O15S3.3Na; molecular weight — g/mol.

What other names is Naphthol Green B known by?

Acid green 1, C.I. Acid Green 1, Ext D&C Green 1, C.I. Acid Green 1 (VAN), EINECS 243-010-2, GREEN NO. 401.

What is the regulatory status of Naphthol Green B?

Documented regulatory listings: CIR / INCI: Hair dyeing; Cosmetic colorant.

Is Naphthol Green B classified as hazardous?

96.9% of GHS notifications report no hazard classification (156 of 161).

What are the key physical properties of Naphthol Green B?

Color Additive Status: 81.10; Color Additive Status: 81.30.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.